The report you’ll ______must be clear and correct.Don’t let the typist make any spelling mistakes.
I won’t call you, __________ something unexpected happens.
He was told that it would be at least three more months __________ he could recover and return to work.
Most birds find it safe to sleep in the trees, but __________ they have eggs or young chicks, they don’t use a nest.
You will be successful in the interview __________ you have confidence.
—Where’s that report?—I brought it to you __________ you were in Mr. Black’s office yesterday.